Share-Based Payments (Summary Of Stock Option Activity) (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2015 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, Beginning balance (in shares) | shares	128
Granted (in shares) | shares	0
Exercised (in shares) | shares	(49)
Canceled, expired, or forfeited (in shares) | shares	(24)
Outstanding, Ending balance (in shares) | shares	55
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding, Beginning of year, weighted average exercise price (in usd per share)	$ 52.59
Granted, weighted average exercise price (in usd per share)	0.00
Exercised, weighted average exercise price (in usd per share)	52.10
Cancelled, expired or forfeited, weighted average exercise price (in usd per share)	53.99
Outstanding, Ending balance, weighted average exercise price (in usd per share)	$ 52.40